Acoustic coupler for a hearing aid



FIG. 1 is a front perspective view of an acoustic coupler according to a first embodiment;

FIG. 2 is a rear perspective view of the acoustic coupler of FIG. 1;

FIG. 3 is a side view of the acoustic coupler of FIG. 1; and

FIG. 4 is a rear view of the acoustic coupler of FIG. 1;

FIG. 5 is a side view of the acoustic coupler of FIG. 1, rotated ninety degrees about its axis relative to the side view of FIG. 3;

FIG. 6 is a front view of the acoustic coupler of FIG. 1;

FIG. 7 is a side view of the acoustic coupler of FIG. 1, rotated 90 degrees counterclockwise as viewed in FIG. 3;

FIG. 8 is a front perspective view of an acoustic coupler according to a second embodiment;

FIG. 9 is a rear perspective view of the acoustic coupler of FIG. 8;

FIG. 10 is a side view of the acoustic coupler of FIG. 8; and,

FIG. 11 is a rear view of the acoustic coupler of FIG. 8;

FIG. 12 is a side view of the acoustic coupler of FIG. 8, rotated ninety degrees about its axis relative to the view of FIG. 10;

FIG. 13 is a front view of the acoustic coupler of FIG. 8; and,

FIG. 14 is a side view of the acoustic coupler of FIG. 8, rotated 90 degrees counterclockwise as viewed in FIG. 10. 

The ornamental design for a acoustic coupler for a hearing aid, as shown and described. 